"""
Copyright (c) 2022 Huawei Technologies Co.,Ltd.

openGauss is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:

          http://license.coscl.org.cn/MulanPSL2

THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
See the Mulan PSL v2 for more details.
"""
"""
Case Type   : 防篡改
Case Name   : 删除账号测试
Create At   : 2022/3/10
Owner       : @daiguatutu
Description :
    1.设置参数并重启数据库enableSeparationOfDuty=on
    gs_guc set -N all -I all -c enableSeparationOfDuty=on;
    gs_om -t restart
    2.分别创建拥有createdb权限的用户和普通用户
    create user u_author_account_0011 [不同权限] password 'test@123';
    3.分别切换用户创建/删除数据库
    create database db_author_account_0011;
    drop database db_author_account_0011;
    4.清理环境
    drop user u_author_account_0011 cascade;
    gs_guc set -N all -I all -c enableSeparationOfDuty=off;
    gs_om -t restart
Expect      :
    1.成功
    2.成功
    3.拥有createdb权限的用户执行成功,普通用户执行失败
    4.清理环境成功
History     :
"""

import os
import unittest

from testcase.utils.Common import Common
from testcase.utils.CommonSH import CommonSH
from testcase.utils.Constant import Constant
from testcase.utils.Logger import Logger
from yat.test import Node
from yat.test import macro


class Security(unittest.TestCase):
    def setUp(self):
        self.log = Logger()
        self.log.info(f'-----{os.path.basename(__file__)} start-----')
        self.pri_node = Node(node='PrimaryDbUser')
        self.pri_sh = CommonSH('PrimaryDbUser')
        self.constant = Constant()
        self.common = Common()
        self.u_name = 'u_security_authen_account_0011'
        self.db_name = 'db_security_authen_account_0011'
        self.default_value1 = self.common.show_param('enableSeparationOfDuty')

    def test_security(self):
        text = '-----step1：设置参数并重启数据库enableSeparationOfDuty=on; ' \
               'expect:成功-----'
        self.log.info(text)
        mod_msg = self.pri_sh.execute_gsguc('set',
                                            self.constant.GSGUC_SUCCESS_MSG,
                                            'enableSeparationOfDuty=on')
        self.assertTrue(mod_msg, '执行失败:' + text)
        result = self.pri_sh.restart_db_cluster()
        self.assertTrue(result, '执行失败' + text)

        privileges = ['with createdb', '']
        for privilege in privileges:
            text = '-----step2：分创建权限为{privilege}的用户 expect:成功-----'
            self.log.info(text)
            create_cmd = f"drop user if exists {self.u_name} cascade; " \
                f"create user {self.u_name} {privilege} " \
                f"password '{macro.GAUSSDB_INIT_USER_PASSWD}'; "
            msg = self.pri_sh.execut_db_sql(create_cmd)
            self.log.info(msg)
            self.assertIn(self.constant.DROP_ROLE_SUCCESS_MSG, msg,
                          '执行失败:' + text)
            self.assertIn(self.constant.CREATE_ROLE_SUCCESS_MSG, msg,
                          '执行失败:' + text)

            text = f'-----step3：使用权限为{privilege}的用户登录创建/删除数据库; ' \
                f'expect:拥有createdb权限的用户执行成功,普通用户执行失败-----'
            self.log.info(text)
            sql = f'drop database if exists {self.db_name};' \
                f'create database {self.db_name};' \
                f'drop database if exists {self.db_name};'
            connect = f'-U {self.u_name} -W {macro.GAUSSDB_INIT_USER_PASSWD}'
            msg = self.pri_sh.execut_db_sql(sql, sql_type=connect)
            self.log.info(msg)
            if privilege == '':
                self.assertIn(self.constant.PERMISSION_DENIED, msg,
                              '执行失败:' + text)
            else:
                self.assertIn(self.constant.DROP_DATABASE_SUCCESS, msg,
                              '执行失败:' + text)
                self.assertIn(self.constant.CREATE_DATABASE_SUCCESS, msg,
                              '执行失败:' + text)

    def tearDown(self):
        self.log.info('-----step4：清理环境-----')
        text1 = '-----删除用户 expect:成功-----'
        self.log.info(text1)
        drop_cmd = f"drop user if exists {self.u_name} cascade;"
        drop_msg = self.pri_sh.execut_db_sql(drop_cmd)
        self.log.info(drop_msg)

        text2 = '-----修改参数enableSeparationOfDuty为初始值并重启数据库 expect:成功-----'
        self.log.info(text2)
        mod_msg1 = self.pri_sh.execute_gsguc('set',
                                             self.constant.GSGUC_SUCCESS_MSG,
                                             f'enableSeparationOfDuty='
                                             f'{self.default_value1}')
        restart_res = self.pri_sh.restart_db_cluster()

        self.log.info('-----断言tearDown执行成功-----')
        self.assertIn(self.constant.DROP_ROLE_SUCCESS_MSG, drop_msg,
                      '执行失败:' + text1)
        self.assertTrue(mod_msg1, '执行失败:' + text2)
        self.assertTrue(restart_res, '执行失败:' + text2)
        self.log.info(f'-----{os.path.basename(__file__)} end-----')
